View Compilation Error

0_0_37907283_17331.cpp: In function 'bool cmp2(pointx, pointx)':
0_0_37907283_17331.cpp:18:11: error: 'struct pointx' has no member named 'val'
  return a.val<b.val;
           ^
0_0_37907283_17331.cpp:18:17: error: 'struct pointx' has no member named 'val'
  return a.val<b.val;
                 ^